49149379 has 2 divisors, whose sum is σ = 49149380. Its totient is φ = 49149378.

The previous prime is 49149377. The next prime is 49149383. The reversal of 49149379 is 97394194.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49149379 - 2¹ = 49149377 is a prime.

It is a super-2 number, since 2×49149379² = 4831322912171282, which contains 22 as substring.

Together with 49149377, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (49149377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24574689 + 24574690.

It is an arithmetic number, because the mean of its divisors is an integer number (24574690).

Almost surely, 2^49149379 is an apocalyptic number.

49149379 is a deficient number, since it is larger than the sum of its proper divisors (1).

49149379 is an equidigital number, since it uses as much as digits as its factorization.

49149379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 244944, while the sum is 46.

The square root of 49149379 is about 7010.6618089878. The cubic root of 49149379 is about 366.3020464422.

The spelling of 49149379 in words is "forty-nine million, one hundred forty-nine thousand, three hundred seventy-nine".